package day16.homework13;

class A { 
    int x = 10; 
    void show() { 
    System.out.println("A: " + x);
} 
} 

    class B extends A { 
    int x = 20; 
    void show() { 
    System.out.println("B: " + x); 
} 
} 

    public class Test4 { 
    public static void main(String[] args) { 
    A a = new B(); 
    a.show(); 
    System.out.println("A: " + a.x); 
    System.out.println("B: " + ((B)a).x); 
} 
}
